Valve for reversible steam-engines.



Patented lune I7, 19H2. A. H. KUUNS.

VALVE FOR REVERSIBLE STEAM ENGINES.

(Application med May 16. 1901.)

2 Sheets-Shut L.

(No Model.)

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No. 702,860. Patented lune I7, |902.

A. H. KOONS.

VALVE FOR REVERSIBLE STEAM ENGINES.

(Application led lay 16, 1901.)

(No Model.) 2 Sheets-Shaot 2.

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IINTTED STATES PATENT GFF-Alon".

AMOS H. KOONS, OF MARTINSVILLE, INDIANA.

VALVE Fon REVERSIBLE STEAM-ENGINS.

SPEGIFICATIGN forming part of Letters Patent No. 702,86, dated June 17, `1902. Application filed May 16, 1901. Serial No. 60,544. (No model.)

To @ZZ whom it may concern,.-

Beit known that I, AMOS H. KOONS, a citi- Zen of the United States, residing at Martinsville, in the county of Morgan and State of Indiana, have invented a new and useful Valve for Reversible Steam-Engines,of which the following is a specification.

This invention relates generally to steamengines, and more particularly to an improved reversing` mechanism whereby the use of the ordinary link-motion is avoided.

Another object of the invention is to provide an improved mechanism by means of which the motion is not only reversed, but the steam-pressure regulated, thereby accomplishing all of the operations of the link-motion.

Other objects and advantages of the invention will appear hereinafter; and the invention consists in the peculiar construction of the various parts and in their novel combination or arrangement, all of which will be fully described hereinafter and pointed out in the claims.

In the drawings forming a part of this speciiication, Figure l is a sectional perspective illustrating my invention. Fig. 2 is a longitudinal section on the line 2 2 of Fig. 3. Fig.

3 is a section taken on the line 3 3 of Fig. 2. Fig. et is a section on the line 4t 4 of Fig. 2.

Fig. 5 is a longitudinal section on the liner 5 of Fig. 3. Fig. 6 is a transverse section on the Vline 6 6 of Fig. 5. Fig. 7 is a horizontal section on the line 7 7 of Fig. 5. Fig. 8 is a similar view, the reversing plate being shifted. Fig. 9 is a detail perspective ofthe reversing plate, and Fig. l0 is a transverse vertical section on the line l0 IO of Fig. 5.Y

In carrying out my invention I employ a cylinder` A,in which works the piston B. The steam-chest C, which is arranged upon the cylinder A, is of peculiar formation and comprises the lower section C' and the upper section G2, the lower section C beingdivided longitudinally by means of a vertical partition C3.

A indicates steam-ports arranged at each end of the cylinder, and the lower section of the steam-chest is provided with oppositelyinclined partitions D for the purpose of separating the ports upon the opposite sides ofthe central partition C3.

E, which forms the top of the lower section C', is a bearing-plate, and F,Which constitutes the bottom of the upper section C2, is a valveseat for the valve G,'and working between the bearing-plate F. and the valve-seat Fris the reversing plate H, connectedto a-lever H by means of a pitman H2, said lever being pivoted at the rear end of the cylinder, as most clearly shown 4at Figs. l and 5. The ValveG is of the usual construction, and the bearingplate E and the valve-seat F have registering port-openings E' and F', respectively, andthe ordinary exhaust-openings F.2 and LF2 are also arranged in connection with the said bearingplate and valve-seat. As before stated, the bearing-plate and valve-seat have registering openings E and F', and these openings are arranged in alinement, as most clearly shown in Fig. 4, it being understood that four openings are produced in therplate and four openings Vinthe `valve-seat and at each end, such construction being made necessaryon account of the subdividing-partition C3. The reversing plate H also has four openings produced therein, as indicated at Gand G2, and the centraleXhaustopening G3 is also provided, and it `will'be notedthat this exhaust-opening is twice the length of the exhaust-opening F2 in the valve-seat F. It will also be noted that the openings G and G2 are not in alinement, but are arranged instepped order, as most clearly shown in Figs. 7, 8, and 9, so that by shifting the position of the plate be- ;tween thebearing-plate and valve-seat alter- `nate series of openings are brought into register with the port-openings of the plate and valve-seat, and thereby controlthe motion of the piston.

In operation steam is admitted to the chest `through the steam-pipe S and passes through the ports F', G2, and E and through the port A at the left-hand or forward end of the cylinder into the said cylinder, forcing the piston in the direction indicated by the arrow in Fig. 2. At the Sametime steam is exhaustingifroin the opposite end through thel ports A', It", G2, F', F2, andEz, and these operations Will continue'as long as thc reversing plate remains in that position, it being understood that the steam enters through the port G upon one side of the central partition and exhausts through the port G2 upon the IOO opposite side of the partition. The lever for operating the shifting plate can be adjusted to eut oi or regulate the steam to any desired extent, and by completely shifting or reversing the position of the plate, as most clearly shown in Fig. 5, it will be noted that the steam will enter through the port G' at the opposite end and exhaust through the port G2, which is oppositely disposed to the port G2 previously referred to in the first 0peration. rIhe exhaust opening G3 being double the size of the exhaust-openings F2 and G2, will always be in register with the said exhaust-openings, irrespective of the position of the reversing plate.

The operation and advantages of my invention will thus be clearly understood, and it will be readily seen that I provide an eX- ceedingly simple and efticient reversing meehanism, which will avoid the use of link-motion and at the same time accomplish all of its advantageous results.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent ot' the United States, is

l. In a reversing-gear for steam-engines, the combination with the bearing-plate and valve-seat having alining ports or openings upon opposite sides of a central longitudinal line, of a reversing plate arranged between the bearing-plate and valve-seat and having non-alining openings or ports upon opposite sides of a central longitudinal line, said plate being movable horizontally for the purpose of bringing certain of its ports into register with the ports or openings in the bearingplate and valve-seat, substantially as show and described.

2. In a reversing-gear for steam-engines, the combination with a bearing-plate and valve-seat having alining ports or openings and arranged above a central partition in the steam-chest, ot' a reversing plate arranged between the bearing-plate and valve-seat and having ports or openings adapted to be `alternately brought into register with the ports or openings of the valve-seat and bearingplate, substantially as shown and described.

3. The combination with a cylinder, of a steam-chest said chest having a longitudinal partition provided with oppositely-inclined partitions upon its opposite sides, a bearingplate having openings or ports therein, a valve-seat having openings or ports arranged in alinennent with the openings or ports of the bearing-plate, and a reversing plate arranged to work between the bearing-plate and valve-seat and provided with non-alining openings or ports, substantially as shown and described.

4c. In a reversing-gear for steam-engines, the combination with the bearing-plate having steam inlet and exhaust ports or openings, 0E a valve-seat having inlet and exhaust openings upon opposite sides of a central 10ngitudinal line adapted for alinement with the openings or ports of the bearing-plate, and the reversing plate having non-alining inlet openings or ports, and an exhaust-port of a size to be continually in register with the exhaust ports or openings in the valve-seat and bearing-plate, substantially as shown and described.

5. The combination with the cylinder and steam-chest of a longitudinal partition arranged in the said steam-chest, the oppositely-inclined partitions arranged upon 0psite sides of the longitudinal partition, the bearing-plate and valve-seat having alining ports or openings, the reversing plate sliding between the bearing-plate and valve-seat and having non-alining inlet openings or ports and a continuously-alining exhaust-port, and means for shifting or reversing the said plate, substantially as described.

AMOS H. KOONS.

IVitnesses:

VILLIAM C. RHEA, NATHAN A. WHITAKEi-i, JOHN XV. PRINGLE. 

